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redundant 302 fuel mileage gripes...

 
  #16  
Old 12-04-2009, 04:12 PM
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Dual tanks? Check to see if you have any cross filling going on. More than a few people here have found that to be the cause of their bad fuel mileage.
 
  #17  
Old 12-04-2009, 08:33 PM
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^ Yeah I've got dual tanks.. the other is dry with a pump that went bad two months ago.. I pumped the fuel out and into the rear, working, tank..
 
  #18  
Old 12-04-2009, 08:45 PM
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Make sure your speedo/odometer are correct, and that your method of calucaltion is correct.

BTW, those K&N's need to be cleaned every 10-15K miles, just as you would replace a paper filter. Some people will say they can go 50K miles inbetween cleaning which is rediculous. Ditch the Fram oil filter too, try a Motorcraft or Puralator.

You metioned cleaning the MAF senor, might as well clean out the trottle body while your at it.
 
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Old 12-04-2009, 10:24 PM
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^ That sounds good.. I've just read somewhere that someone was complaining that the Fram filters starve the oil delivery.. I'll throw a motorcraft on there next time.. I'll TRY and change it this weekend.

I usually check the TB every oil change, but it's been a while and I'm slackin a bit.. GOnna be truck maintenance tmrw.. and I gotta look for sled parts..
 
  #20  
Old 12-04-2009, 10:56 PM
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^ Cool. Someone had mentioned checking the codes. That's worth doing.

Don't forget to grease any fitting while your under it changing oil too. Good luck.
 
  #21  
Old 12-05-2009, 07:16 AM
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Originally Posted by 94MustangGT View Post
Make sure your speedo/odometer are correct, and that your method of calucaltion is correct.

BTW, those K&N's need to be cleaned every 10-15K miles, just as you would replace a paper filter. Some people will say they can go 50K miles inbetween cleaning which is rediculous. Ditch the Fram oil filter too, try a Motorcraft or Puralator.

You metioned cleaning the MAF senor, might as well clean out the trottle body while your at it.
Since its been mentioned, just ditch the KN for a good quality replacement filter.
 
  #22  
Old 12-05-2009, 07:42 AM
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I have a 1996 F-150 with the 300 six in it, and I got greedy once. At 120,000 miles, I swapped in a 302. I had to have a V8. They run great in cars, so I thought I'd be happy with it in my truck. Unfortunately, I found that is drank very heavily, and wasn't happy with heavy loads. I swapped back to the six after about 30,000 miles. My logs indicate that I got 14-15 mpgs on the highway, and 9-11 around town. My 300 averages 14 in town and 21 on the highway. That is with no overdrive and 3.73 gears. I just have to do 55 MPH. I love the 302, but not for trucks. I am not trying to insult anyone, this is just my observation. Nobody I know with a 302 in a truck does well on fuel mileage. On the plus side, they are durable, easy to care for, and will last about forever if you treat them right.
 
  #23  
Old 12-05-2009, 08:11 AM
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My truck has 3.08 rears in the rear end, and a 5 speed with the 302, and empty on the highway gets around the 21-22 mark also. I have a few (4) of these years of trucks and the manual tranny truck does get a few mpg better then the autos.

I think your doing right on spot with the truck you have, and the mileage your getting.
 
 
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